package top.likeqc.security;

import cn.hutool.json.JSONUtil;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;
import org.springframework.stereotype.Component;
import top.likeqc.common.lang.Result;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.nio.charset.StandardCharsets;

@Component
public class LoginFailureHandler implements AuthenticationFailureHandler {
    @Override
    public void onAuthenticationFailure(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, AuthenticationException e) throws IOException, ServletException {
        
        httpServletResponse.setContentType("application/json;charset=UTF-8");
        ServletOutputStream outputStream = httpServletResponse.getOutputStream();
    
        Result result = Result.fail(
                "Bad credentials".equals(e.getMessage()) ? "用户名或密码不正确" : e.getMessage()
        );
        
        outputStream.write(JSONUtil.toJsonStr(result).getBytes(StandardCharsets.UTF_8));
        
        outputStream.flush();
        outputStream.close();
        
    }
}
